21.   Armed uniformed police and port security guarded all the entrances to the harbour while the ship docked to unload.

22.   Port security fired on the ship Thursday to force it to dock after its Dutch captain refused to allow customs officials to search it, the sources said.

23.   Port security was tight, with vehicles bearing security stickers being searched along with others seeking to enter the harbour area.

n. + security >>共 443
job 16.07%
fixed-income 12.85%
airport 8.54%
government 8.50%
debt 4.39%
mortgage 4.35%
border 3.56%
homeland 2.56%
computer 2.10%
treasury 1.93%
port 0.48%
port + n. >>共 288
city 33.86%
authority 8.63%
official 7.05%
call 4.04%
town 3.13%
facility 3.05%
side 2.14%
area 2.14%
worker 1.70%
operator 1.54%
security 0.91%
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